LSJ
οἱ, the Assyrians, Hdt. 1.193, al. ; — Ἀσσυρία, Ion. -ίη (sc. γῆ), ἡ, their country, Id. 2.17, etc. ; — Ἀσσύριος, α, ον, as an Adj., Theoc. 2.162, al. ; later Ἀσσυρικός, ή, όν, St.Byz., al.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)